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The Real Mother of All Bombs, 46 Years Ago

vaporland writes "Tsar Bomba is the Western name for the RDS-220, the largest, most powerful weapon ever detonated. The bomb was tested on October 30, 1961, in an archipelago in the Arctic Sea. Developed by the Soviet Union, the bomb had a yield of about 50 megatons. Its detonation released energy equivalent to approximately 1% of the power output of the Sun for 39 nanoseconds of its detonation. The device was scaled down from its original design of 100 megatons to reduce the resulting nuclear fallout. The Tsar Bomba qualifies as the single most powerful device ever utilized throughout the history of humanity."

85 of 526 comments (clear)

  1. I respectfully disagree... by TobyRush · · Score: 4, Insightful

    The Tsar Bomba qualifies as the single most powerful device ever utilized throughout the history of humanity.
    I don't know... my money's still on the pen.
    --
    Sam! If you will let me be,
    I will try them.
    You will see.
    1. Re:I respectfully disagree... by raphae · · Score: 2, Insightful

      I don't know... my money's still on the pen.

      It was heartening to see such encouraging words after watching that horrific video which made me want to cry just thinking about how profanely humans have abused this ancient, loving Earth we have inherited.

      I also believe "The pen is mightier than the sword" and that, indeed, one day righteousnes, wisdom, and courage will prevail over ignorance, fear, and greed.
    2. Re:I respectfully disagree... by JonathanR · · Score: 5, Funny

      Yeah. Think of all those forests laid waste to accommodate your bloody writing implement.

    3. Re:I respectfully disagree... by Anonymous Coward · · Score: 2, Interesting

      alright - i'll take the nuke & you take the pen. we'll see who wins.

    4. Re:I respectfully disagree... by Entropius · · Score: 2, Interesting

      Oppenheimer et al. wouldn't have worked out how to make a nuke if they didn't have pens.

    5. Re:I respectfully disagree... by KDR_11k · · Score: 5, Insightful

      The pen is mightier than the sword: Often propaganda will work better than overt force. Shackle a man's hands and he will try to break free, shackle his mind and he will never consider it.

      This is the reason I consider false or sensationalist news more dangerous to the wellbeing of society than terrorism.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    6. Re:I respectfully disagree... by smilindog2000 · · Score: 5, Interesting

      I just finished reading "A Brief History of Rome" (free e-book from gutenberg.org). Throughout, the 19th-century author kept referring to "Barbarians" and "Civilization". I eventually figured out that the difference was literacy (the pen). The Romans inflicted both the pen, and Christianity on the world. The author seemed to think both were true gifts, but I noticed that the downfall of Rome started in earnest with Constantine, who converted them empire's faith, and that the dark-ages followed shortly after. Coincidence? I doubt it. Wikipedia has a great article on it. Just my own two-cents, but a corrupt society built on slavery and the spoils of war needed the old religion and an all-powerful emperor to survive. So... which is more powerful, the pen, or religion?

      --
      Beer is proof that God loves us, and wants us to be happy.
    7. Re:I respectfully disagree... by Bearhouse · · Score: 2, Interesting

      Then perhaps it's a shame they did...

    8. Re:I respectfully disagree... by DarkShadeChaos · · Score: 5, Funny

      You're selling Penis Mightier? ... you're sitting on a goldmine Trebek!

      --
      The machine unmakes the man. Now that the machine is so perfect, the engineer is nobody. -Ralph Waldo Emerson
    9. Re:I respectfully disagree... by mike2R · · Score: 5, Interesting

      Just to point out that if you read a modern study of the fall of the Empire in the west you will find a very different set of explanations. Why the Empire fell is one of the "big questions" for historians and current answers don't bare much resemblance to those of the nineteenth century.

      When I was a history undergraduate, I remember one of my lecturers saying he thought it was a question that frequently said more about the writer than anything else; eg in the immediate post-war period historians concentrated on the external military pressures of the "barbarians" (it's a Roman word). Later historians turned more to ideas of internal factors such as the increased tax burden on local elites and the Empire allowing barbarian auxiliaries to settle within the empire's borders under their own leaders.

      --
      This sig all sigs devours
    10. Re:I respectfully disagree... by Anonymous Coward · · Score: 5, Insightful

      It was heartening to see such encouraging words after watching that horrific video which made me want to cry just thinking about how profanely humans have abused this ancient, loving Earth we have inherited. Ancient, loving Earth that we have inherited? Are you kidding me? You could argue the first point, but the last two are absurd. There is no Gaia, and the Earth does not have a soul. The Earth is only a very big rock with a layer of pond scum on it. It doesn't love you any more than your pet rock does. And we haven't inherited the Earth any more than the pond scum have inherited a rock they happen to be clinging to.

      Enough with this stupid Gaia superstition and quasi-religion! The planet Earth does not care whether you exist or not. It will not protect you. And it is not holy. It is just a rock. The real loss if we hurt the environment of this planet is not some spiritual entity. It is the potential loss of knowledge for us humans. But once that level of knowledge is reasonably complete and humans can survive without the Earth, this planet will only have sentimental value and it will not matter whether we mine it to the core or use it as a testbed for nuclear weapons.
    11. Re:I respectfully disagree... by AVee · · Score: 2, Funny

      So... which is more powerful, the pen, or religion? Well, there are some known cases of religious organisations are spreading pens...
    12. Re:I respectfully disagree... by Mr2cents · · Score: 5, Funny

      alright - i'll take the nuke & you take the pen. we'll see who wins. I suspect that you'll see the flaw in your plan by the time I'm banging your head against the wall to see if I can get that pen any further up your nose..
      --
      "It's too bad that stupidity isn't painful." - Anton LaVey
    13. Re:I respectfully disagree... by Yetihehe · · Score: 5, Funny

      I also believe "The pen is mightier than the sword"
      Obligatory quote from Terry Pratchett: *Only when sword is very dull and pen is very sharp.
      --
      Extreme Programming - Redundant Array of Inexpensive Developers
    14. Re:I respectfully disagree... by kamapuaa · · Score: 3, Insightful
      Rome pre-Christianity was not unified by a single religion, it was a melange of different religions. And Rome was more of a "spoils of war" based society when it was a Republic, not when it was led by an all-powerful emperor - at least after AD 100 or so. If you say it's all-powerful - all the constant assassinations showed that emperors had a check on their power from angry mobs and the military, whereas despotic Chinese leaders could rule with relative impunity for long stretches of the Chinese Empire.

      The idea that the fall of the Roman Empire started with Constantine is completely ludicrous and obviously is more influenced by your anti-Christian beliefs than an honest view of history. He expanded the empire, consistently beat back Germanic tribes, and led to the empire's split into halves, with the Eastern half lasting a thousand years longer.

      Writing = civilization? While there's an obvious correlation, not quite. All the Germanic tribes by the fall of Rome had adopted scripts of their own. Anyway the judgment obviously had a lot more to do with 19th century ethos than anything else.

      Christianity was employed against the enemy - Rome pursued a policy of converting Germanic tribes to a Rome-centered Christianity, to make them more dependent towards Rome. So in that sense, Christianity probably prolonged the empire.

      It seems you read history books for the sole purpose of re-enforcing your own prejudices, and don't actually absorb any of it. Why do you even bother reading?

      --
      Slashdot: providing anti-social weirdos a soapbox, since 1997.
    15. Re:I respectfully disagree... by jamstar7 · · Score: 2, Informative

      "The other guys" were trying to develope their own bomb. The United States just got there first.

      --
      Understanding the scope of the problem is the first step on the path to true panic.
    16. Re:I respectfully disagree... by Nazlfrag · · Score: 4, Insightful

      Is it really that hard to grasp that the Gaia concept is a metaphor for our incredibly complex and precious biosphere. It bloody well is holy because this rock is our symbiote, our petri dish. Fuck it up and we're toast. So yeah, anthropomorphising the planet makes perfect sense. Sentimental value my arse, if we keep poisoning and harvesting the planet to extinction life as we know it will cease to exist. Mining it to the core or testing nuclear weapons is literally killing the planets lifeforce. The only stupidity is your ignorance in thinking humanity can survive outside of the fertile lifestream that birthed it.

    17. Re:I respectfully disagree... by phaunt · · Score: 4, Informative

      [...] the external military pressures of the "barbarians" (it's a Roman word). Actually, it's a Greek word: people whose speech goes like "bar bar" and can't be understood.
    18. Re:I respectfully disagree... by JustOK · · Score: 2, Funny

      No no, its a term for people who follow BarBar.

      --
      rewriting history since 2109
    19. Re:I respectfully disagree... by smilindog2000 · · Score: 4, Insightful

      I basically agree. An uncensored Internet has to be the greatest gift to mankind during my lifetime to date, if not all of history. The battle for freedom of speech, and thus free people, will be waged here, in the form of censorship. Too bad Google and others actively support censorship.

      --
      Beer is proof that God loves us, and wants us to be happy.
    20. Re:I respectfully disagree... by Hijacked+Public · · Score: 5, Insightful

      I took the parent as taking issue with the 'loving' part than with the anthropomorphic tone of the OP.

      My favorite 'mother earth' quote, from someone who was out in it quite a bit:

      "...nature is a stern, hard, immovable and terrible in her unrelenting cruelty. When wintry winds are out and the mercury far below zero she will allow her most ardent lover to freeze to her snowy breast without waving a single leaf in pity, or offering him a match; and scores of her devotees may starve to death in as many languages before she will offer a loaf of bread."

      That from Nessmuk.

      I'm from the Aldo Leopold school of conservation, I don't want to poison the air and water and cut down all the trees. But I also know, from various somewhat narrow escapes, that regardless of the cartoon face stuck on nature, it wants to crunch up my bones and return them to the soil and only by my wits or by erecting technological barriers do I keep that from happening.

      Entropy and all that. Nature is a big promoter of entropy.

      --
      "Sacrifice for the good of The State" - The State
    21. Re:I respectfully disagree... by 192939495969798999 · · Score: 5, Insightful

      My favorite pen-sword retort:
      "just because 'the pen is mightier than the sword', that doesn't mean you can win a sword fight with a pen."

      --
      stuff |
    22. Re:I respectfully disagree... by rucs_hack · · Score: 3, Funny

      The Aqueducts?

    23. Re:I respectfully disagree... by Hal_Porter · · Score: 3, Insightful

      I don't know... my money's still on the pen. It was heartening to see such encouraging words after watching that horrific video which made me want to cry just thinking about how profanely humans have abused this ancient, loving Earth we have inherited.

      I also believe "The pen is mightier than the sword" and that, indeed, one day righteousnes, wisdom, and courage will prevail over ignorance, fear, and greed. Oh for God's sake. If you want to survive as a civilisation you need both happy civilised artists and big motherfucking bombs. And you need people who are willing to use those bombs too if there is no alternative like the US and UK did in WWII. Otherwise predatory neighbouring civilisations which have bombs but no artists will take over, enslave all the artists and that will be the end of things.

      It happened to Athens, and it happened to most of the European democracies in WWII. There are probably lots of examples of civilisation that were culturally quite good that got completely eradicated my their militaristic but philistine neighbours.

      Even if your neighbours seem peaceful there's always a risk that their economies may collapse and some Hitler like politician may decide to revive them by deficit spending on a huge military machine. If they do that they pretty much have to use it for armed 'hostile takeovers' of their more peaceful neighbours before the deficit spending causes their economy to collapse.

      And it's hard to imagine many decent books being produced in the sort of empire someone like that would build.
      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
    24. Re:I respectfully disagree... by Bozdune · · Score: 2, Interesting

      There was also a recent theory that it was plain old malaria that did them in, attacking from Africa through Sicily and finally arriving with a vengeance on the coastal plains and marshes. The death rate was horrific, and general panic ensued, since the disease vector was mysterious. Barbarian raiders supposedly reported "no resistance" when landing at previously well-defended port cities.

      You seem to know what you're talking about -- any merit to the above?

    25. Re:I respectfully disagree... by Atzanteol · · Score: 5, Funny
      --
      "Ignorance more frequently begets confidence than does knowledge"

      - Charles Darwin
    26. Re:I respectfully disagree... by afidel · · Score: 2, Informative

      Eh? It's not so much the forests (the wood pulp for paper tends to come from quick growing farmed trees) but the streams and rivers that suffer from paper production, both from the paper production process and from the fertilizers used in the tree farms.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    27. Re:I respectfully disagree... by hey! · · Score: 5, Interesting

      I was an MIT undergrad when Ronald Reagan came into office. The Reagan administration was a boon to certain types of research, and a bust for others. There was an enormous shift in emphasis towards research that could be weaponized.

      I remember a scientist who joined the project I was working on. He had headed a small lab elsewhere at MIT as a principal investigator, but he signed on to our project as an engineer because research money had dried up. He brought with him this odd stainless steel apparatus that looked like a mutated, high tech water main. We were using it as small vacuum tank. I asked him what the thing was built to do, and he told me that it was a new kind of electron microscope he had invented that could make images showing the distribution of the different kinds of atomic nuclei in the thing being imaged.

      "Wow, that's very interesting," I said.

      "It is," he replied, "but it was funded on an ONR grant, and they're not funding that kind of research any more. Back in the old days," he went on, "I'd have told them it was a death ray. It's all those damned ROTC engineering grads," he sighed. "About the only way you could kill somebody with this is to drop it on him from a high place. Those guys aren't physicists, but they know a death ray when they see one. All they want to talk about is deaths per dollar."

      The deaths per dollar metric fascinated me. Later I brought it up with some of my friends back at the dorm, and we kicked around the question of how various methods of manslaughter stacked up. The idea of blowing up the famous "Corita" LNG tanks near Boston was popular, until we fetched some Chem E majors who told us about the eight hundred reasons that you couldn't kill more than a handful of people that way.

      Finally, I hit upon an unbeatable method when it comes to deaths per dollar. Go to a construction site, and root through the dumpster until you get a nice section of 2x4 about five feet long. Then walk down the street and beat everybody you meet to death with it.

      "But," they protested, "that's assuming that your time is free."

      "This is a government project," I replied. "To a first approximation staff time is free. We just take all the resources not engaged in productive activity -- that is producing deaths -- and treat them as slack."

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    28. Re:I respectfully disagree... by AbbyNormal · · Score: 5, Funny

      True, but if Tsar Bomba makes a man's country turn into glass, I think we could notch that as a win for the bomb.

      --
      Sig it.
    29. Re:I respectfully disagree... by Lord+Ender · · Score: 2, Insightful

      "lifeforce?" "lifestream?" Are you just making up words? Of COURSE we could survive outside this planet, given sufficient technology. All we theoretically need to survive is neutrons, protons, electrons, and energy. With that those four things and enough knowledge, we could build anything we need.

      The GP is right. We aren't there yet, but we will be if we don't kill ourselves first. The Earth is the cradle of the mind, but one can not eternally live in a cradle.

      The analogies about nuclear explosions "raping" the Earth are quite stupid and misinformed. There is a lot of life at the sites of former nuclear explosions. Think with your head, not with your emotions.

      --
      A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
    30. Re:I respectfully disagree... by Shakrai · · Score: 2, Funny

      Just as difficult as it is to accept the idea of a magical invisible man who knows everything.

      His name is Albus Dumbledore.

      *duck*

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    31. Re:I respectfully disagree... by hitmark · · Score: 2, Insightful

      hate comes from all kinds of reasons, but they never show up out of the blue.

      more often then not its because its because one side is seen to have a unfair advantage of some kind. or that they but in on topics that they have no reason to. or maybe they claimed, unfairly or unreasonably, resources, including land.

      hate never shows up for no reason. find that reason, and understanding why things happen like they do become much clearer.

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    32. Re:I respectfully disagree... by hey! · · Score: 2, Insightful

      Strategy, as always, is a force multiplier. If you aren't expecting it, you are unlikely to mount a credible defense. If you look like you are expecting me to conk you on the head, I don't oblige you by doing that. Instead I walk a bit farther down the street until I get an unsuspecting victim. I don't end up killing many people, but I do it cheaply.

      Really that points out the problem with the deaths per dollar metric, it doesn't take into account the fact you want to kill lots and lots of people quickly. It should really be something like log(deaths achievable in one day)/dollar. We should then use a nominal labor cost of, say, minimum wage, and compare the strategy of hiring various sized gangs of thugs with surplus 2x4s versus dropping the bomb as effective ways to kill people in any particular situation.

      My guess is that under such a more robust metric, nukes would appear more cost effective.

      However even that metric really isn't very good, because really you want to ask how many deaths you need to effect in order to achieve your goal, which is probably political in nature rather than wholesale death per se.

      In that case, you really can't do better than an occasional suicide bomber with a nail filled explosive vest. On the scale of cost and complexity, this is much closer to the surplus 2x4 approach than the nuclear approach, but you get a response that is closer to a nuke scale response. You don't have to kill that any people, you just have to do it visibly and unpredictably. This is especially effective if you can provoke your enemy into expensive and strategically counterproductive responses.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    33. Re:I respectfully disagree... by Artifakt · · Score: 3, Informative

      Japan was actually getting serious about the possibility of a fission bomb, Germany wasn't. Some historians think it was because Germany's racial doctrine was so aggressively disparaging of 'Jewish' physics, and so their research and funding ended up being steered in other directions. Japan had physicists who weren't afraid to use Einstein's or other Jewish physicists work in their own papers.

      In September 1940, the Japanese Army controlled Institute of Physical and Chemical Research, or Rikken, was assigned a preliminary project. In 1942, the Japanese Navy began also (somewhat independently of the Army) working on a Uranium based fission device. The project was called F-Go {or sometimes just No. F, for fission]. This was located at Kyoto, and was actually the chief reason why Kyoto was added to the list of potential military targets for the U.S. bombs, although in the end the city was still taken off the list by Truman due to its historic and social value. Despite a certain military commitment these programs weren't backed with adequate resources, and the Japanese were probably still four or more years from having a bomb by the end of the war.

            A Japanese plant, concealed in Hungnam, now part of North Korea, may have been the source of heavy water subsequently used by the USSR for its own bomb research. There are reports the Soviet Union continued to run that plant and collected the output every other month by submarine, and it alone may have shaved a year or more off the USSR's development time.

            In May 1945, a German submarine which surrendered to US forces , was found to be carrying over 500 kg. of Uranium oxide destined for Japan. The oxide contained about 3.5 kilograms of isotope U-235. While not enough to make a bomb, that was a sizable fraction of one. After the Japanese surrender, the occupying US Army found five cyclotrons which were capable of separating fissionable material from ordinary uranium. The US bomb program was accomplished by using gaseous diffusion based separation, but cyclotronic separation was rejected not because it wouldn't work, but because it seemed likely to take longer. Some historians see the willingness of the Germans to supply Uranium to their ally as proof they didn't fully appreciate the potential, while Japan did.

      --
      Who is John Cabal?
    34. Re:I respectfully disagree... by Anarchitektur · · Score: 2, Informative

      "The pen is mightier than the sword" is often taken out of context. Everyone forgets the condition that comes BEFORE that statement: Beneath the rule of men entirely great, the pen is mightier than the sword.

      In countries ruled by a bunch of rich jackasses, the pen doesn't amount to much because nothing you write changes the fact that the rich jackasses still own and run everything! Just look around and you'll see that a 50 megaton nuke is still a lot more persuasive than your Bic; they may not overtly threaten with it, but the unspoken understanding that their power is backed up with force is always there.

    35. Re:I respectfully disagree... by tjstork · · Score: 4, Interesting

      Some historians think it was because Germany's racial doctrine was so aggressively disparaging of 'Jewish' physics, and so their research and funding ended up being steered

      The bigger problem was that an impurity in graphite during research caused German scientists to miscalculate the amount of uranium needed to have a sustainable fission reaction, causing them to estimate it at many hundreds of tons, rather than the small pounds that the Americans ultimately came up with. With so many other urgent priorities, it didn't seem possible so therefor, they didn't really pursue it!

      --
      This is my sig.
    36. Re:I respectfully disagree... by hitmark · · Score: 2, Interesting

      iirc, it comes from the view that the whites are better then all others.

      i think we can thank the long era of conquest and empire building for that.

      that, and the view that all other cultures are of lesser value in some form or other.

      then when this is shown to be untrue you get that old yoda loop: fear -> anger -> hatred.

      and yes, hatred is hereditary.

      power is a effect of resource access and control. and when you have a group of people that you envision as no more then say a workhorse, you can go on a power trip of sorts. the "america for the whites" is built on the concept of who should control the resources (including the workforce) of the place. the workforce then being the "lesser" races.

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    37. Re:I respectfully disagree... by Xentor · · Score: 2, Insightful

      Or, as good ol' St. George (Carlin) said...

      "The planet is fine. The planet isn't going anywhere...... WE ARE! We're goin' away! Pack your shit, folks!"

      --
      "The amount of intelligence on this planet is a constant. The population is growing." -Cole's Axiom
    38. Re:I respectfully disagree... by Reader+X · · Score: 4, Interesting

      Some historians, notably Richard Rhodes, have theorized that the German mismeasurement of the cross-section of graphite was sabotaged by the scientists who did it.

    39. Re:I respectfully disagree... by careysub · · Score: 2, Informative

      This whole post is fictional history. Some statements in it are factual but the story, as presented, is false.


      Japan was actually getting serious about the possibility of a fission bomb, Germany wasn't. Some historians think it was because Germany's racial doctrine was so aggressively disparaging of 'Jewish' physics, and so their research and funding ended up being steered in other directions. Japan had physicists who weren't afraid to use Einstein's or other Jewish physicists work in their own papers.

      This a confused mishmash of half-facts and outright falsehoods. Nazi purges of academia had lost them a good portion of their best physicists who were either Jewish, or communists, or were non-Germans who simply had had enough of the regime. But Germany was the world center of physics at the time and they still had many, many highly competent physicists. Nazi doctrines had no influence at all in the practice of science by scientists. See Alan Beyerchen's excellent "Scientists Under Hitler".


      In September 1940, the Japanese Army controlled Institute of Physical and Chemical Research, or Rikken, was assigned a preliminary project. In 1942, the Japanese Navy began also (somewhat independently of the Army) working on a Uranium based fission device. The project was called F-Go {or sometimes just No. F, for fission].

      This much about Japan's effort at least is more or less correct, although the Japanese Army did not control the Riken (correct spelling, Rikken is a Dutch card game). The two research programs, NI-Go and F-Go, together constituted a tiny effort by a nation short on scientists and advanced industry. The total peak employment of both programs combined, including assigned military officers was 55 people, and the total amount of money appropriated to the effort was $350,000. The U.S. effort employed 2000 times as many people, and spent 5000 times as much money. In all of Japan there were only 30 active physicists, far too few to staff a serious fission effort. See Walter E. Grunden, "Secret Weapons and World War II: Japan in the Shadow of Big Science", University Press of Kansas, 2005.

      This was located at Kyoto, and was actually the chief reason why Kyoto was added to the list of potential military targets for the U.S. bombs,...

      This is simple fantasy. No such consideration ever came up in the work of the Target Committee.

      ...and the Japanese were probably still four or more years from having a bomb by the end of the war.

      True, though a vast understatement. The Japanese project had only prepared a few grams of ordinary uranium metal, had only a few hundred kilograms of crude uranium compounds on hand, and had not enriched even a microgram of uranium above natural levels. Really, the program had no results at all, and thus could hardly be said to have even truly begun.

      A Japanese plant, concealed in Hungnam, now part of North Korea, may have been the source of heavy water subsequently used by the USSR for its own bomb research. There are reports the Soviet Union continued to run that plant and collected the output every other month by submarine, and it alone may have shaved a year or more off the USSR's development time.

      All of the above is fantasy.

      In May 1945, a German submarine which surrendered to US forces , was found to be carrying over 500 kg. of Uranium oxide destined for Japan. The oxide contained about 3.5 kilograms of isotope U-235. While not enough to make a bomb, that was a sizable fraction of one.

      A bit like evaluating a pile of iron ore in terms of the number of jet engines you could potentially make out of it. That such a small quantity of uranium compound was considered significant by Japan indicates how short of resources they were.


      After the Japanese surrender, the occupying US Army found five cyclotrons which were capable of separating fissionable material from ordinary uranium.

      The U.S. Army didn't "find" them. They weren't secret

      --
      Starships were meant to fly, Hands up and touch the sky - Nicky Minaj
    40. Re:I respectfully disagree... by iocat · · Score: 2, Funny
      This doesn't excuse everything he did, but it's better then nothing.

      I don't know, I remain uncertain about Heisenberg priciples.

      --

      Dude, I think I can see my house from here.

    41. Re:I respectfully disagree... by Tablizer · · Score: 2, Funny

      The bigger problem was that an impurity in graphite during research caused German scientists to miscalculate the amount of uranium needed to...

      So the *pencil* is mightier than the bomb, not pen.

  2. Re:Pedantry: ENGAGED by JanneM · · Score: 5, Informative

    "The Tsar Bomba qualifies as the single most powerful device ever utilized throughout the history of humanity." Except for, say, the aforementioned sun, The sun is not a device. You know, if we're going to be pedantic.
    --
    Trust the Computer. The Computer is your friend.
  3. Nah. by Shadow+Wrought · · Score: 4, Funny

    Vista's still a bigger bomb.

    --
    If brevity is the soul of wit, then how does one explain Twitter?
    1. Re:Nah. by FredDC · · Score: 4, Funny

      Could be, but it's never been used!

      --
      09 f9 11 02 9d 74 e3 5b d8 41 56 c5 63
  4. Re:thanks by drgonzo59 · · Score: 4, Interesting

    Yes, but you can transport them on a large nuclear submarine and quietly lay them down by your enemies coastlines. Say 20 of these 100Mt bad boys and you got yourself a nice man made tsunami. No need to fly around or expose the launch...

  5. video here by gambolt · · Score: 4, Informative
    1. Re:video here by Card · · Score: 4, Informative

      Be kind to the server; YouTube has video footage as well.

      http://youtube.com/watch?v=pgY9gYoCsgs
  6. Re:Pedantry: ENGAGED by Danny+Rathjens · · Score: 2, Insightful

    Tough one. The sun is certainly a nuclear reactor. Is the defining property of a device that it was created by someone? I guess this is an intelligent design issue. ;)

  7. Color, odor and flavor by Anonymous Coward · · Score: 5, Funny

    Penis mightier.

  8. test? by apodyopsis · · Score: 3, Insightful

    they are always labeled a "test". what exactly were they testing?

    that they can make a bloody big bang?

    what the after effect were?

    ..or they they could go one step further in a foolish session of bloody pointless political brinkmanship?

    I always thought with nuclear weapons, that really after a certain size there were precious little point is making it more powerful.

    1. Re:test? by rwven · · Score: 4, Informative

      They're testing the effects of shockwaves, which types of light and how much of them are emitted in the blast, what exactly goes on (at the visible and molecular level) in the milliseconds after detonation, and PLENTY of other things. They were also testing new bomb designs and making sure they worked.

      Regardless of what conspiracy theorist ideas you may have, they didn't spend billions developing these bombs, and then cause lots of (localized) damage testing them just for the pretty fireworks show. The tests DID have a point.

      Not that I'm saying I LIKE the idea that the things are hanging around anymore. The idea that one bomb could kill millions and the idiotic world leaders wave them around like a revolver in the hands of a drunk is just a little on the "what the hades, are you totally insane??" side of things. It's a sad state of affairs we live in when people talk about "nukes for nukes" instead of the lives of the people that would be vaporized without a chance. If you've gotta use weapons, make them conventional or there won't be much of a world left to argue over...yaknow?

    2. Re:test? by Lavene · · Score: 2, Insightful

      they are always labeled a "test". what exactly were they testing?

      that they can make a bloody big bang?
      The word 'test' in this context really means: "Look what we can do!" Nuclear deterrent in practice. The whole idea behind nuclear weapons is to discourage your enemy from attacking so you want them to see exactly what you can do to them. It's a scary tactic but it seem to have worked... so far...
    3. Re:test? by BlueParrot · · Score: 4, Interesting

      I always thought with nuclear weapons, that really after a certain size there were precious little point is making it more powerful.


      You got that right. This is why modern weapons don't even go above one megaton. Instead you load multiple warheads that are "only" a few hundred kilotons into a single missile. Of course, this is pretty much overkill as well, because quite frankly, a "small" number of warheads will be quite sufficient as a deterrent. The chance that somebody will attack you if they know they will get 50 nukes flying right back at them is not very much greater than if they are going to get 400 nukes back in their face. Now, to put this into perspective, the US has more than 5000 warheads in service, and more than 9000 stockpiled. Russia has close to 6000 in service, and 16000 stockpiled. The UK has 750 in service, France has 350, and China some 130. India has about 80, Pakistan about 10, and Israel is suspected to have between 100-300.

      Thus in total there are some 10.000 warheads in service in the world, which works out to about 100 nukes per country. As anybody with half a brain can see, this is absolutely silly. The larger nuclear powers could cut their arsenals by a factor of 10, and they would still have several hundred nukes in service as a deterrent.
    4. Re:test? by Wyatt+Earp · · Score: 5, Informative

      They are testing new materials and designs of the electronics and radioactive materials used. Some tests do fail or exceed expectations. Something like the George" shot, was physics experiment relating to the hydrogen bomb.

      Buster-Jangle-Able was a fizzile with a one kilogram yield, but with alot of radiation.

      The American test, Castle Bravo, yielded almost double the expected yield.

      Castle Bravo didn't use cryogenic boosters for its fusion phase, so it lead to the developable and miniaturization of the hydrogen bomb (Fission-Fusion and Fission-Fusion-Fusion)

      Then you tested to make sure entire systems world, like Grable of the Upshot-Knothole test was a nuclear weapon fired from a 280mm artillery piece and became the proof shot for the entire like of American nuclear artillery rounds.

      Then also from tests at different altitudes they've learned to optimize the device's explosion altitude so smaller devices can be deployed.

    5. Re:test? by Anspen · · Score: 2, Insightful

      It's the usual competition reason: China has nukes, so India must have them to protect herself, whereupon which Pakistan must have nukes to protect itself against India (and ironacly gets help from China to do so).

      Plus it like a large population: if you're country isn't doing too well on other measures, nukes are a nice way of rising above the pack.

  9. Re:Pedantry: ENGAGED by ZombieRoboNinja · · Score: 5, Funny

    Sure it is. "A device whereby hydrogen is converted through fusion reactions to helium for the purpose of releasing energy." Didn't you read IBM's patent application?

  10. Cool toy, but useless as a weapon by Opportunist · · Score: 5, Interesting

    It was a show. One could say one of the most spectacular special effects ever made.

    That baby weighed about 30 tons. The Tupulev that carried it to its destination had its bomb bays open and some fuel tanks removed to fit that thing somehow into its belly. Though it could be carried anywhere within Russia, an intercontinental strike with it was impossible.

    No, ICBMs couldn't carry it either. By far not. The R9, which just came into production in 61, could carry less than 2 tons.

    The idea behind the Tsar (besides proving who has the biggest) was to compensate for inaccurate targeting. The goal was a bomb that could level a town even if dropped miles away (because the bomber was about to be shot down, or because the pilot had better things to do, like avoiding being shot down, than aiming accurately). It was quickly abandoned when ICBM targeting became accurate enough to ensure you could level whatever target you want to strike. And MIRVs offer much more destruction per ton carried.

    In its core, it was a propaganda stunt. Another chapter in the dick-comparing story between Russia and the USA.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    1. Re:Cool toy, but useless as a weapon by LynnwoodRooster · · Score: 2, Funny

      Yeah, their's was a bit bigger, but ended up being a one-shot wonder...

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  11. At least they chose a right site by $criptah · · Score: 3, Interesting

    Given the history of Soviet nuclear testing (or perfection), I am happy that they managed to find a remote spot and not blow up their own like they did in Kazakhstan. Also, I am thankful that this "my penis is bigger than yours" race is over. Things could have been a lot worse.

  12. Re:Somethign doesn't add up by Neo+Quietus · · Score: 5, Insightful

    The key difference is the incredibly short time frame the bomb produces 1% of the energy of the Sun. This is helped by the Sun releasing energy in essentially the slowest possible way. (The sun is self limited, in that when it gets too hot from too much fusion occurring it expands slightly, lowering the rate of fusion until it cools down.) I don't find it odd at all that for a short period of time the largest fusion bomb ever tested produced 1% of the sun's energy. I can produce accelerations in the hundreds of G's simply by smashing my fist into a wall and likewise say that "for less than a millisecond I produced forces hundreds of times stronger than the pull of Earth's gravity" and be technically correct.

  13. Re:If you haven't ever seen it by Wyatt+Earp · · Score: 2, Informative

    Trinity and Beyond along with the Making of the Atomic Bomb by Richard Rhodes are a very good primer on the Anglo-American development along with the science and math done in Europe and the Americas from 1900-1945.

    If you are interested in the spying and hydrogen bomb development along with the Soviet bomb, Rhodes Black Sun covers that.

  14. Re:thanks by KDR_11k · · Score: 3, Insightful

    Actually we don't even use bombs that size because it's just expensive overkill, doing more damage to the atmosphere and planet than to the target you were aiming at. It's more effective to use a missile with a crapload of small warheads that can be targetted individually so you know you hit what you were aiming for and aren't restricted to placing a circle of damage in one point that has to contain all targets. Also as crappy as modern anti-ICBM weapons are, they're still more likely to take down a single, huge warhead than a swarm of tiny ones, probably with decoys scattered in.

    --
    Justice is the sheep getting arrested while an impartial judge declares the vote void.
  15. Re:Geewhiz numbers by csirac · · Score: 5, Informative

    Because the statement that it would be equivalent to "The power output of the Sun for .39 nanoseconds" is misleading.

    Don't get distracted by the 39ns figure. Power is an instantaneous quantity - it is a rate at which energy is transmitted. They are saying that the bomb sustained a level of power (rate of energy) output and held it there for a period of time - 39 ns - that approached 1% of the sun.

    I repeat: 39ns is just the period of time that the power level peaked for. They calculated that the amplitude of the power peak itself, was equivalent to 1% the power output of the sun.

    We don't care about how long the peak lasted for, the 39ns, unless you start integrating power over time as you just did, in which case you're comparing a quantity of energy, rather than a rate of energy output. Yes, I suppose you could say that 39ns @ 1% sun power is equivalent to an amount of energy produced by the sun in 0.39ns, but that's not the interesting number here, because we could similarly integrate just about any huge power source over a long enough interval of time (hours, days, years, whatever) to come up with "the same amount of energy output by the sun over 39 ns".

    So the interesting number is in this case, yes, that the actual instantaneous absolute power output of the bomb approached 1% of that of the sun, albeit for only 39 ns.

    Quite remarkable...

  16. Somebody by antifoidulus · · Score: 3, Funny

    set up us the Tsara Bomba!

  17. If 1/100 of the Sun suddenly appeared on Earth... by Anonymous Coward · · Score: 2, Insightful

    My sense of scale must be off; I would've thought 1% of the Sun's power could instantly reduce the Earth to a barren rock. Surely the Sun is well over 100 times larger than the Earth?

  18. Remember.. by DriftingDutchman · · Score: 2, Funny

    Don't try this at home, kids..

  19. Re:This is kinda old... by NIckGorton · · Score: 3, Funny

    As is my age, however I celebrate birthdays once annually. Have a look at the date the thing was detonated.

    Happy birthday to you. Happy birthday to you. Happy birthday dear big-effing-stupid-violent-explody-thingy. Happy birthday to you!

    And I suspect Digg and /. might actually have repeat articles in another year.

  20. Re:Somethign doesn't add up by frying_fish · · Score: 4, Interesting

    Given the fact the explosion created power for such a short amount of time it is not inconceivable that its power output was approaching 1% of the sun. It would not be able to sustain that power, and given it was a fission reaction which for each reaction releases ~ 200MeV of energy, compared to ~ 13MeV for a fusion reaction, you can create a lot more energy (usually in the form of heat) from a short term fission than you can fusion.

    Also as many others are stating, you're probably confusing power with energy, the energy output won't be 1% of the sun, but the power output for that short time could well approach it.

  21. Wholesale slaughter of millions of people by flajann · · Score: 4, Insightful
    You gotta love nuclear bombs. It'll vaporise you no matter who you are. An old grandma, a kid playing in her yard, a dad leaving for work, a mom washing the dishes. A student graduating from college. A bird in a tree. A doctor saving a life. All gone in quite literally a flash.

    Really and honestly, what purpose can a 50-megatonne thermonuclear bomb really serve, except to say, "My power to vaporise millions of innocent people is greater than your power..."? While perhaps impressive from a scientific point of view, there is no practical use for nukes other than to annihilate civilization as we know it.

    Yes, leave it to the governments of the world to protect us and keep us "safe". "Safe" as in safely glowing in your grave.

    1. Re:Wholesale slaughter of millions of people by Dread_ed · · Score: 2, Insightful

      I would rather be vaporised than covered in napalm or thermite. I would also opt for vaporization over beheading or being skinned alive.

      At different times in history, all of the methods of destruction I mention abouve have been applied indiscriminately to kill "innocent people."

      Lets face it, nukes really are the kinder and gentler weapon of war.

      --
      When the only tool you have is a claw hammer every problem starts to look like the back of someone's skull.
  22. Re:Somethign doesn't add up by BlackPignouf · · Score: 2, Interesting

    From qalculate:

    sigma*(5778K)^4*4*pi*(1.392E9m)^2*29ns*1% to J
    = 446.3 PJ

    ans/c^2
    = 4.966 kg

    Conclusion: maybe, maybe not.
    You "just" need to convert 4.966kg in pure energy in 29ns!

  23. but this is war.. by bronney · · Score: 2, Insightful

    But war doesn't have to make sense and it doesn't have to be green. Bombs can also be remotely detonated. World War IV will be fought with sticks and stone buddy.

  24. Re:thanks by alyosha1 · · Score: 2, Insightful

    Why is laying nuclear mines a suicide mission? Just a question of a long enough time-delay, surely? You'd only need one sub, working its way along the coast. And as for avoiding detection, Boomers have gotten rather good at that over the last 50 years.

  25. Re:Would it fit in a shipping container? by freedom_india · · Score: 2, Funny

    This is the Secret Service. Your location has been mapped and the new AG has been informed to issue a warantless tap on yourself, landline, mobile, home, work.
    Meanwhile Gitmo has a warm seat being prepared for your arrival.
    The dogs there have not been biting anyone ever since the congress started questioning the poor canines.

    --
    "Doing what i can, with what i have." ~ Burt Gummer
  26. Nuclear weapons get the populace involved by Colin+Smith · · Score: 4, Insightful

    If the population know they're going to be vaporised when the government goes to war, they'll become far more concerned with the politicians preponderance for going to war in the first place.

    --
    Deleted
  27. Re: "Loving Earth" by Neuticle · · Score: 5, Insightful

    Bravo, AC, Bravo. I was going to say much the same thing, albeit maybe less bluntly. However, I would add this to the above:

    Everyone I have heard espouse the "loving Earth/Gaia" bit lives a comfortable, relatively modern life. Mother Earth loves you plenty when you have electricity, running water and stores full of food.

    Take that away and get real close to Mother Earth. I've been there: Mother Earth may still love you, but the bitch will try her best to kill you at every opportunity.

    --
    "Cheeze it!" - Bender
  28. I wrote an essay that included Tsar Bomba by MichaelCrawford · · Score: 3, Interesting
    ... a while back. Some of what's in the essay you'll find quite chilling. My I present to you my very own peace-activism site:

    Yeah, I was pretty surprised the domain was available too.

    I plan to add some stuff about the Cuban Missile Crisis sometime soon, such as a wild bear wandering onto a US Air Force Base with the result that a fighter squadron armed with - ready for it? - nuclear air-to-air missiles was scrambled, and would have taken off had not the base commander blocked the runway with his own car.

    The idea behind what one pilot described as "the dumbest weapon ever invented" was to fire a rocket armed with a nuclear bomb into the general vicinity of a soviet bomber. The blast would be big enough that the bomber would be destroyed even if the rocket didn't get very close. It's not quite clear what would become of the American or Canadian citizens on the ground beneath the detonation.

    There's lots more, but I have to do it in little pieces or the I start wanting to crawl out of my own skin.

    --
    Request your free CD of my piano music.
  29. The Doomsday Bomb by MichaelCrawford · · Score: 5, Interesting
    I'd heard about the Cobalt bomb in, off all places, the Planet of the Apes movies, but I figured it was just science fiction, and not a real weapon, a single instance of which could wipe out all life on Earth.

    But I was wrong.

    I don't recall now who invented it, but the idea was to surround a large hydrogen bomb was a casing of non-radioactive Cobalt. The fusion reaction produces a neutron or so for each helium atom created. In a conventional hydrogen bomb, these neutrons are used directly to cause damage, by irradiating living things. But in a Cobalt bomb...

    The neutrons are absorbed by the Cobalt, to become the highly radioactive gamma ray emmitter Cobalt-60. It gets vaporized by the blast, and largely blown into the upper atmosphere.

    Most radioactive fallout from an H-bomb has a very short half life, which is why those who escape the blast can safely emerge from their fallout shelters in a couple weeks. Not so with Cobalt-60: it has a half-life of several years.

    That's long enough to enable to vaporized Cobalt-60 to spread via air currents all over the Earth, eventually to be caught up in raindrops and thereby fallen to the Earth.

    Where it will irradiate everyone with a lethal gamma dose.

    It was envisioned as a spoiler, to be detonated by the loser in a nuclear war. It would need to be a pretty big bomb, on the scale of Tsar Bomba, but it wouldn't need to be delivered, just detonated in place. It will kill everyone eventually, except maybe those in deep underground shelters, who manage to stay there for decades.

    It's inventions like this by my colleagues that make me ashamed to have a degree in Physics.

    --
    Request your free CD of my piano music.
    1. Re:The Doomsday Bomb by darkmeridian · · Score: 2, Interesting

      The cobalt dirty bomb was basically a bluff by the United States in a very Strangelovian manner. The military leadership was able to convince everyone that the Russians had a huge nuclear warhead advantage over the United States. Afraid that the Commies were going to destroy America, we said that we would end life on this planet if we were attacked. The nasty part about the device is that it's fallout had a half-life that was short enough so it could release its radiation in a sustained fatal dose (radioactive materials either burn long or burn bright), yet long enough to wait out any survivors who took refuge into bunkers.

      However, a cobalt device has never been known to be built. The problem probably lies in obtaining enough cobalt to make a device large enough to cause the end of life on Earth. A cobalt-based doomsday device can't be dropped onto enemy territory--due to size constraints, it must be based on friendly territory. If you don't get enough bang to end life on Earth, you would just destroy your own country for no reason.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
  30. Re:If 1/100 of the Sun suddenly appeared on Earth. by T+Murphy · · Score: 2, Informative

    Firewalkers don't burn their feet because they are in contact with the heat for only a short period of time. This bomb didn't do apocalyptic damage because it only lasted for a brief amount of time. If the explosion held its peak for a minute, there would likely be issues produced that alter life as we know it, but it was a short enough burst that the energy was able to dissipate over a large area without issue.

  31. An ex-KGB spy said they were convinced Reagan... by MichaelCrawford · · Score: 5, Interesting
    ... would push the button. I read an article by the spy in Time Magazine after the breakup of the Soviet Union. His job was to count lit-up windows in British Defense Ministry buildings each night; the idea was that if the war was about to start, the Defense Ministry workers would all be up late working on the planning for it.

    And that's not at all far-fetched; I read once that a certain Washington DC Domino's Pizza knew the night before when the first Persian Gulf War was going to start, as they were getting orders from the Pentagon all night long.

    --
    Request your free CD of my piano music.
  32. Re:thanks by MachineShedFred · · Score: 2, Interesting

    You are exactly correct. This is why the most fearsome weapon ever built was not the "Tsar Bomba," but rather the Peacekeeper/MX ICBM. The Peacekeeper could physically hold up to 12 300kt warheads (limited by treaty to 10), each independently targetable.

    Nukes kill with three types of damage: thermal, blast, and ionizing radiation. These three different effects scale differently, as you can read here.

    Since the amount of blast-based destruction goes down rapidly the farther from "ground zero" you go (inverse-cube law), it makes sense that a big-ass fucking bomb like the "Tsar Bomba" doesn't get you very far. However, in the picture depicted here you can see how modern weapon desigs get around this - each streak is a dummy reentry vehicle from a single Peacekeeper/MX test launch; which if it were not a launch vehicle test would have a mushroom cloud underneath, each with 20x the power of the Hiroshima blast.

    --
    Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  33. Re:thanks by Fear+the+Clam · · Score: 2, Funny

    And as for avoiding detection, Boomers have gotten rather good at that over the last 50 years.

    But the sounds of The Big Chill soundtrack always give them away in the end.

  34. Energy is not power by xebra · · Score: 2, Informative

    Its detonation released energy equivalent to approximately 1% of the power output of the Sun for 39 nanoseconds of its detonation.

    The thing that irks me the most about Slashdot is the way that the majority of posters and commenters so maladroitly feign expertise in the sciences. Anyway, you meant to say "Tsar Bomba's rate of energy release, for a period of 39 nanoseconds, was ~1% of the Sun's rate of luminous energy release (which has been maintained continuously for ~4.5 billion years.)"